PT-2026-73057 · Siyuan · Siyuan

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CVE-2026-73053

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Published

2026-08-15

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Updated

2026-08-26

CVSS v3.1

9.0

Critical

VectorAV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.4
Description A cross-site scripting issue exists in the unicode2Emoji() function due to a failure to sanitize codepoint branch output. This allows attackers to create document icons containing hex-encoded markup. When processed by the renderer with Node integration enabled, this can lead to arbitrary code execution on the host system.
Recommendations Update to version 3.7.4 or later.

Exploit

Fix

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-73053

Affected Products

Siyuan